1) East Slavic tribe 
The Severians or Severyans or Siverians (Северяне; Сiверяни) were a tribe or tribal union of early East Slavs occupying areas to the east of the middle Dnieper river around the rivers Desna, Sejm and Sula on the territory of the archaeological culture of Romny. They are mentioned especially by the Bavarian Geographer (9th century, a...